Improvement in devices for sharpening stone-tools



E. L. MUORE,

Devices for Sharpening Stone Tools. No.15l544, Patentedlune2,l874.

@y j fig ,a

wnuesses; menton FW @Q www ATTonNEYs.

ENOCH L. MOORE, OF STEUBEN, MAINE.

IMPROVEMENT IN DEVICES FOR SHARPENING STONE-TOOLS.

Specification forming part of letters Patent No. 151,544, dated June 2,1874; application filed March 21, 1874.

To all whom it may concern:

Be it known that I, ENOOH L. MOORE, of Steuben, in the county ofWashington and State of Maine, have invented a new and use fulImprovement in Stone-Tool Sharpeners, of which the following is aspecification:

The invention will first be fully described, and then pointed out in theclaim.

In the accompanying drawing, Figure 1 is a front view of the Sharpener.Fig. 2 is a longitudinal section of Fig. l, taken on the line a; x.

Similar letters of reference indicate corresponding parts.

A is an iron plate on the back of the article,

` to which the other parts are attached, and

upon which the movable part of the swage slides. The swage is formed oftwo parts. B is the upper and movable part. O is thelower and stationarypart. This part C is placed in a hole in the anvil, and supports theinstrunient in an upright position. Itis fastened in this position bymeans ofthe keyG. This stationary part of the swage is con ti ned to theplate A by the clip D, the arms of which pass through the plate, and arefastened securely thereto by nuts. Between the part O and the under sideof the clip is a lOrming-swage, F, to upset and give the proper bevel todrills, the drill heilig placed upright, and driven endwise with thehammer. The movable part ofthe swage B is kept in position by the clipD', which is fastened through the plate A by screws, the same as theother clip. H is the opening between the beveled ends of the two partsof the swage, in which the tool is placed to be swaged and sharpened.rlhe part B slides freely through the clip D', and is guided by it.Blows with the hammer are struck upon the end I, and the chisel or drillis readily brought to the form Or bevel of the opening, leaving thesides of the chisel smooth and uniform in shape.

In giving a drill the proper form it is inserted in the opening, andturned to the right and left, guided by the flanged plates E, whichplates are attached to the plate A by the screws J J.

With this instrument, an unskilled workman may sharpen the tools of thestone-cutter and quarryman in the most rapid and accurate manner, withthe aid of the ordinary blaeksmiths fire and anvil.

My tool-Sharpener can he used with almost all kinds of tools forcutting, hammering, or drilling stone, such as drills, bush -hammercuts, chisels, points, Sac.; and, with a larger machine of the samekind, a plan-hammer can be sharpened.

The operation is as follows The drill should be heated, placed in anupright position, with the point resting Vin the upsetter, and struck onthe head with the handhammer. It is then laid on the anvil, and hammeredon the sides, to taper the edge; then placed in the swage in ahorizontal position, on an angle sufficient to form one side of thedrill, after which the swage is struck with the hammer. It is thenchanged to the other corner of the swage, to form the other side of thedrill, changing it from right to left iu the swage, and striking more orless below with the hanuner, or enough to complete the edge. One blow isnever su licient. All stone-masons know that a drill, to be used withsuccess on stone-work, requires comlensation by hammering.

To sharpen a hush-hammer eut, the [langes should he removed from the1'nael1ine,aud the bush-haunner eut placed in the swage, and moved fromright to left, the top of the swage being struck with the hammer untilthe edge is complet-ely sharpened. In this Way the edge of the toolbecomes perfectly smooth and true, which is seldom the case when donewith a hand-hammer alone on the anvil.

My invention does not forge or weld, but is to he used only forupsetting and sharpening tools.

Having thus described my invention, what I claim is- A blacksmithstool-Sharpener, consisting of plate A, swage B, held loosely in clip D',and xed swage O, having npsetter F, as and for the purpose specified.

Witnesses: ENOCH L. MOORE.

GEO. H. STEVENS, JOHN L. SMITH.

